Rion DA-20 User manual

INSTRUCTION MANUAL
4-Channel Data Recorder
DA-20
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Fax:0755-28125225 代理商:深圳市米乐仪器有限公司


i
Organization of this manual
This manual describes the features, operation and other aspects of the 4-Chan-
nel Data Recorder DA-20. If the unit is used together with other equipment
to congure a measurement system, consult the documentation of all other
components as well. The following pages contain important information
about safety. Be sure to read and observe these in full.
This manual contains the following sections.
Outline
Gives basic information on the unit.
Parts and Functions
Explains the indicators, connectors, and all other parts on the panels of
the unit.
Power On/Off
Explains how to turn the unit on and off.
Display Explanation
Explains the various items that are shown on the LCD panel.
Menu Operations and Setting Items
Lists the basic steps that are common to all menus, and briey explains the
individual setting items.
Preparations
Explains checks and other steps to take before starting to record. Sensor
connection and setup as well as other functions are also explained here.
Recording
Explains the recording process as well the voice memo and marker func-
tions.

ii
Recall/Playback of Recorded Data
Explains how to recall and delete recorded data.
Messages
Explains the causes for messages that appear on the display and steps to
take in response to such messages.
Filter Characteristics
Shows the high-pass lter and low-pass lter characteristics.
Specications
Lists the technical specications of the unit.
* Company names and product names mentioned in this manual are usually
trademarks or registered trademarks of their respective owners.
To conform to the EU requirement of the Di-
rective 2002/96/EC on Waste Electrical and
Electronic Equipment, the symbol mark on the
right is shown on the instrument.
The product described in this manual is in conformity with the
following European standards;
EN61326:1997 + A1:1998 + A2:2001 + A3:2003

iii
FOR SAFETY
In this manual, important safety instructions are specially marked as shown
below. To prevent the risk of death or injury to persons and severe damage
to the unit or peripheral equipment, make sure that all instructions are fully
understood and observed
.
Caution
WARNING
Important
Disregarding instructions
printed here incurs the risk
of death or severe injury to
persons.
Disregarding instructions
printed here incurs the risk of
injury to persons and/or dam-
age to peripheral equip
ment.
Disregarding instructions
printed here incurs the risk
of damage to the product.
Denot e s sp e ci a l i n for m ation
that is helpful in utilizing the
capabilities of the unit but that
is not directly related to safety.
Note

iv
Caution
When using earphones, check for compatibility with this unit
You should use only the supplied earphones at the Monitor Out connector
of this unit. If other earphones are used, there is a risk of excessive volume
levels causing hearing damage.
Do not play the supplied CD-ROM disc in a CD player
The DA-20 Viewer software is supplied on a CD-ROM included in the pack-
age. This is not a music CD. Inserting this disc in a CD player poses the risk
of excessive volume levels than can cause hearing damage and damage to
the CD player.
Be careful around rotating machinery
When using the unit near rotating machinery, take care that cables or the strap
of the supplied soft carrying case cannot be caught in the machinery.
Avoid excessive force and abrupt operation
Applying strong force to the keys or card slot cover of the unit can lead to
damage and injury. When connecting or disconnecting cables and opening
or closing the card slot cover, take care not to pinch your ngers.

v
Important
Disconnect sensors when playing back recorded data
Input connectors used during data recording may become output connectors
during playback of recorded data. If a sensor remains connected, there is a
risk of damage to the sensor by the playback signal.
Check the install CD-ROM
Before inserting the supplied DA-20 Viewer software install CD-ROM in the
CD-ROM drive of a computer, be sure to visually check the disc. If there are
any cracks or scratches or if the disc is deformed, do not insert the disc
in the
CD-ROM drive. Otherwise there is a risk of damage to the CD-ROM drive.
Handle batteries correctly
If batteries are inserted with wrong polarity or otherwise mishandled, battery
uid may leak and overheating may occur.
Do not apply excessive voltage
Make sure that voltage applied to the power supply connector (DC-IN) and
to the signal input/output connectors does not exceed the specied values.
Otherwise there is a risk of damage to the unit.

vi
Precautions
Operate the unit only as described in this manual.
Observe the following conditions with regard to locations for use and
storage of the unit:
Do not store the unit in locations where the specied permissible range
for temperature and humidity may be exceeded (-10ºC to +50ºC, max.
90% RH).
Do not use the unit in locations where the specied permissible range
for temperature and humidity may be exceeded (-10ºC to +50ºC, max.
90% RH).
Do not use or store the unit in locations where there are rapid and
drastic changes in temperature or where there is a possibility of con-
densation.
Do not use or store the unit in locations that may be subject to splashes
of water or other liquids.
Do not use or store the unit in locations that may be exposed to direct
sunlight.
Do not store the unit in locations that may be subject to air with high
salt or sulphur content, or subject to the inuence of gases and other
chemicals.
Do not store the unit in slanted or instable locations.
Do not use or store the unit in locations that may be subject to vibra-
tions or shock.
If batteries are inserted with wrong polarity or otherwise mishandled,
battery uid may leak and overheating may occur.
Make sure that voltage applied to the power supply connector (DC-IN)
and to the signal input/output connectors does not exceed the specied values.
Take care that cables or the strap of the supplied soft case cannot be caught
in rotating machinery.

vii
Do not apply strong force to the keys or card slot cover of the unit. Oth-
erwise there is a risk of damage to the unit or injury to ngers etc. When
connecting or disconnecting cables and opening or closing the card slot
cover, take care not to pinch your ngers.
Use only the supplied earphones at the Monitor Out connector of this
unit. If other earphones are used, there is a risk of excessive volume levels
causing hearing damage.
Use only CompactFlash cards supplied by Rion. When other commercially
available cards are used, the unit may not operate properly.
Verify before use that all cables are correctly and safely connected. Do not
bend cables sharply or subject them to pressure. When removing cables,
always grasp the plug or connector and do not pull the cable.
Do not attempt to disassemble or modify the unit. In case of malfunc-
tion, do not attempt any repairs. Note the condition of the unit clearly and
contact the supplier.
When sending the unit in for servicing, please use the original packing
material to protect the unit from vibrations and shocks.
When disposing of the unit, be sure to observe all applicable legal regula-
tions and guidelines in your country and community.

viii
Contents
Organization of this manual............................................................ i
FOR SAFETY............................................................................... iii
Outline ............................................................................................1
Parts and Functions .......................................................................5
Front panel ................................................................................5
Rear panel ...............................................................................10
Front side panel ......................................................................12
Bottom panel ..........................................................................13
Power On/Off ...............................................................................14
Display Explanation .....................................................................17
Display screen ........................................................................17
Menu Operations and Setting Items .............................................25
General menu operation steps .................................................25
Menu Items .............................................................................34
Menu 1 < Input > ..............................................................34
Menu 2 < Rec.Parameters > ..............................................36
Menu 3 < Calibration > .....................................................39
Menu 4 < Trigger > ...........................................................40
Menu 5 < System > ...........................................................42
Menu 6 < Date Time > ......................................................45
Preparations .................................................................................46
Preparations and checks before recording ...............................47
Power supply .....................................................................47
CompactFlash card preparations .......................................50
Sensor (external equipment) connections ...........................53
Input settings .....................................................................54
Calendar (Menu 6 < Date Time >: Date, Time) ..................61
Display contrast (Menu 5 < System >: LCD Contrast etc.) .. 61

ix
Recording parameter settings ..................................................62
Input range setting .............................................................62
Sampling ...........................................................................65
Recording process .............................................................66
Auxiliary function setup .........................................................73
ID number (Menu 6 < Date Time >: ID) ...........................73
Voice memo/marker ..........................................................74
Preventing inadvertent operation .......................................77
Remote control operation ..................................................78
Recording......................................................................................80
Recording steps ......................................................................80
1. Checks before recording .....................................................80
2. Input range setting / Calibration signal recording ...............82
3. Recording ...........................................................................84
Using the voice memo/marker function ..................................88
Data recording example ..........................................................92
Recall/Playback of Recorded Data ................................................94
Activating recall mode ............................................................94
Playback of recorded data .......................................................99
Canceling recall mode .......................................................... 103
Other information .................................................................104
Messages ....................................................................................107
Filter Characteristics .................................................................. 118
Backup Battery ........................................................................... 119
Specications .............................................................................120

x

1
Outline
The DA-20 is a compact, lightweight data recorder designed for waveform
recording. The unit can be powered from batteries, for ease of use in the
eld.
To record sound or vibration waveforms, microphones or accelerometers can
be connected easily. The capability for sensor drive power supply (CCLD) is
also provided. The useful array of dedicated connectors eliminates the need
to set up additional connection equipment, allowing quick and uncomplicated
recording start.
Features
The unit has the following features.
Simultaneous recording of electrical signals in up to 4 channels.
Compact and lightweight body ensures easy portability. A set of four
IEC LR6 (size AA) alkaline batteries will power the unit for about
8 hours of continuous use (at 23°C, frequency range setting 20 kHz,
4-channel input, no CCLD, backlight off).
Dedicated connectors allow easy hookup of sensors such as micro-
phones and accelerometers. CCLD is also supported.
A wide range of sensors for converting sound pressure, vibrations,
rotation, temperature or other measurement quantities into an elec-
trical signal (AC or DC) is supported. Direct input range display for
specic sensors is possible.
Frequency range from DC to 20 kHz allows recording of a wide range
of phenomena.
Recorded data are stored on CompactFlash card in WAVE format.
For example, when using a 256 MB card, available recording time
with the 5 kHz frequency range setting and continuous recording in
4 input channels is 44 minutes.

2
Outline
Voice memo and marker information can also be recorded, to facilitate
later data management.
Playback of data is possible, making it easy for example to check the
reliability of data in the eld.
Supplied viewer software (DA-20 Viewer) for use on a computer
provides the minimum features required for checking and storing the
recorded waveform data (including voice memo and marker).

3
Outline
System conguration
Automobile running test
(vibration and noise data)
Road traffic noise
(sound pressure waveform data)
Product inspection data
Other data
Temperature meter
Tachometer Sound level meter
Vibration meter
Microphone Accelerometer
Other sensors
4-Channel Data Recorder DA-20
Application software
Supplied: Viewer software (DA-20 Viewer)
Dedicated Rion software
Waveform Processing Software DA-20PA1
Custom software
Generic waveform processing software
(up to 2 channels)
CompactFlash card
Playback signal
monitoring output
Waveform monitoring equipment
Voltmeter
FFT analyzer
Other equipment
CLEAR OV
LIGHT RECALL RANGE MENU
STOPPOWER PLAY REC PAUSE
ENT
DA-20
4ch DATA RECORDER
CARD
CARD CAPACIT Y
1
2
3
4
CompactFlash
Computer
(generic)

4
Outline
Operation environment
The DA-20 allows various operations for recording data. The general concept
of the basic functions is as shown in the diagram below.
Main screen This screen appears as the rst screen, a short while
after power to the unit is turned on. The menu screens,
recording procedure, and recall mode are all accessed
from the main screen. Input range selection is also
possible from this screen.
Menu screen Pressing the [MENU] key at the main screen brings
up a menu screen. There are a number of menu screens
that give access to recording parameters, input settings,
and various other settings (see page 25).
Recording procedure
Pressing the [REC] key at the main screen initiates
the recording procedure. This encompasses all steps
required to record data (see page 80).
Recall mode Pressing the [RECALL] key at the main screen activates
the recall mode. In this mode, you can check, playback
and delete recorded data (see page 94).
Menu screen
(for changing settings)
Power on Recording procedure
(record data)
Recording end
or [STOP]
Recall mode
(for processing of recorded data)
Main screen
[REC]
[MENU]
[MENU]
or [STOP]
[RECALL]
[RECALL]

5
Parts and Functions
Front panel
Display panel
Shows input data, recorded data, menus for changing settings, etc.
Key names and functions
The DA-20 has some dedicated keys that perform only a specic function,
and some keys that perform various functions depending on the current
operating state.
(1) [POWER] key
Serves to turn the unit on and off. The key must be kept depressed for
about 2 seconds.
(2) [STOP] key
Serves to stop data recording or data playback. The key is also used for
menu operations and other functions.
(3) [PLAY] key
Serves to start data playback.
CLEAR OV
LIGHT RECALL RANGE MENU
STOPPOWER PLAY REC PAUSE
ENT
DA-20
4ch DATA RECORDER
CARD
CARD CAPACITY
1
2
3
4
Overload indicator
(9) LIGHT key
(8) RECALL key
CARD CAPACITY indicator
(7) RANGE key
(6) MENU key Card slot cover
(1) POWER key
(2) STOP key
(3) PLAY key
PLAY
indicator
(4) REC key
REC
indicator
(5) PAUSE key
PAUSE
indicator
(10) / keys
(12) ENT key
(11)</>keys

6
Parts and Functions
(4) [REC] key
Serves to start data recording.
(5) [PAUSE] key
Serves to pause and resume data recording or playback.
(6) [MENU] key
Serves to bring up a menu screen or return to the main screen.
There are a number of menu screens which allow changing the settings of
the unit. Menu screens are organized by function category, such as input
settings, recording parameters, etc.
(7) [RANGE] key
Serves to activate and cancel the input range setting condition.
In recall mode, the key serves to delete the most recently recorded
data.
(8) [RECALL] key
Serves to activate the recall mode and to cancel the recall mode and
return to the main screen.
(9) [LIGHT] ([CLEAR Ov]) key
Serves to control the LCD backlight. The backlight is turned on or off at
the point where the key is released. When the LCD backlight has been
activated, it will automatically turn itself off if there has been no key
activity for a certain period. (The duration of this period can be changed
with a menu setting.)
The key is also used to clear the overload history display. To do this,
keep the key depressed for several seconds. The overload history display
indicates if there has been any overload condition between the point when
the key was last pressed and the current time.
(10) [ ]/[ ] keys
These keys serve to switch the input range, select a monitor channel,
change the index number, and perform menu operations. In a given con-
dition (together with the [LIGHT] key), the keys also serve to adjust the
LCD contrast.

7
Parts and Functions
(11) [<]/[>] keys
These keys serve to change the data display format, change the index
number, perform fast reverse/forward during playback, and perform menu
operations.
(12) [ENT] key
This key serves to conrm an item to be changed and accept a setting
that has been made. It is used when setting the input range, performing
menu operations, etc.
Key lock
Pressing and holding the [<] and [>] keys together for a few seconds
activates the key lock condition. In this condition, all keys except the
[LIGHT] key and the [<]/[>] keys that are necessary for canceling the
condition are inactive. (The [POWER] key is also locked.)

8
Parts and Functions
Indicator names and functions
(1) Overload indicators
Indicate that the input signal level is excessive. There is one indicator for
each channel.
Lit in red: While the input signal is causing overload and
for 1 second after the overload condition ceases,
the indicator is lit.
(2) PLAY indicator
Indicates that recorded data are being played back.
Flashing in green: Recorded data are being played back (including
paused playback).
(3) REC indicator
Indicates the operating condition during data recording.
Flashing in red: Data are being recorded (including paused record-
ing).
Flashing in green: Unit is in trigger standby condition.
(4) PAUSE indicator
Indicates that data recording/playback is being paused.
Flashing in blue: Data recording or playback is being paused.
(5) CARD CAPACITY indicator
Indicates that the remaining data recording time on the CompactFlash
card is less than 10 minutes, or that no CompactFlash card is inserted.
Flashing in red: Data recording will stop within 10 minutes.
No CompactFlash card is inserted.
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